Answer:
<h2><u>
directional selection</u></h2>
Explanation:
This type of natural selection is referred to as . In this type of natural selection, either one phenotype is preferred or the other; therefore, there is no equilibrium between the populations of the phenotypes that are present.
Examples of organisms that have undergone directional selection are black bears during the ice ages, African chichlid and sockey salmon.
Answer:
The correct answer is c. a variety of nutrient molecules are readiy available as dissolved solutes.
Explanation:
There are several molecules that act as nutrients, that can dissolve in water. Mostly inorganic compounds like salts can dissolve in water, resulting in ions that can go through the membrane easier. The temperature of living things actually is more stable because of the water in them.
Answer:
The algae can release harmful chemicals known as "bio-toxins" that can contaminate the water and kill the organisms living in the ecosystem
Explanation:
It is not easily recognizable
Answer:
suppose x and y are two divided
parts of 4500. then
x+y=4500 __ (1)
given
5% of x = 10% of y
100
5x
=
100
10y
x=2y
2y+y=4500
3y=4500
y=1500
x+1500=4500
x=4500−1500
x=3000
hence the 4500 is been divided into
two parts of 1500 and 3000.
